Dual functions outsole structure for use on level and sloping ground

ABSTRACT

A dual function outsole structure for use on level and sloping ground is disclosed. The outsole structure is provided with a recess for the mounting of a base plate with a rotation seat. The base plate is hidden within the outsole and the rotation seat is pivotally mounted to the two corresponding securing plates on the base plate. The rotation seat is provided with a plurality of shoe spikes and the two lateral sides of the rotation seat are provided with an elastically trigger anti-return bolt. Under normal situation one end of the anti-return bolt engages with a positioning hole provided on the securing plate such that the rotation seat is positioned. In view of the above components, under normal situation the shoe spike is hidden at the recess of the outsole and is suitable for waling on a level ground (such as on a tar road, pavement road surface or a cement road). If the anti-return bolt is triggered and one end of the bolt is retreated from the engaging position, the rotation seat rotates to an appropriate angle and is then positioned. Thus, the shoe spikes are protruded to provide a deeper ground-gripping force and allows safety walking on sloping ground, refraining from falling into ravine, valley.

BACKGROUND OF THE INVENTION

[0001] (a) Technical Field of the Invention

[0002] The present invention relates to dual functions outsole structurefor use on level and sloping ground, and in particular, an outsolecapable of functioning as a general sport shoe outsole, and the outsolecan be extended out or hidden shoe spikes based on road conditions so asto change the functions of a shoe (i.e. maintaining the function of asport shoe or the function of a shoe with spikes). The outsole structurecan provide a shoe which can be used in all kind of road surfaceswithout needing to change a different type of shoe for differentgrounds.

[0003] (b) Description of the Prior Art

[0004] Nowadays, it is common to have a two non-working days per week.As a result of additional non-working days, leisure life has become amainstream in life. More people are moved away from indoors to outdooractivities, or from city to the wild. In traveling, it is common to walkon a tar road surface, cement road surface, and suddenly walk again on asloping ground or a risky ravine, where the shoe suitable for levelground is now becoming in practical where the ground-gripping force ofthe outsole is insufficient. Thus, the shoe for level ground is notsuitable for sloping ground and it causes dangers to the users(travelers falling down from slope or from ravine). Normally, travelersare reluctant to bring along another pair of shoes with spikes butinsisting to use the same pair of shoes. In view of the demand, it isthe object of the invention to provide a dual functions outsolestructure for use on level and sloping ground which was invented by theinventor after many years of experiments, by proving an outsolestructure of a shoe which can be used in ordinary conditions and becomea spike shoe having higher level ground-gripping force. Thus anyslope-climbing or walking down hill is always safe and convenient.

SUMMARY OF THE INVENTION

[0005] Accordingly, it is an object of the present invention to providea dual function outsole structure for use on level and sloping ground.The outsole is provided with a recess for the mounting of a base platewith a rotation seat. The base plate is hidden within the outsole, andthe rotation seat is pivotally mounted to two corresponding securingplates on the base plate. The rotation seat is provided with a pluralityof shoe spikes and two lateral sides of the rotation seat are providedwith an elastically triggered anti-return bolt. Under normal situationone end of the anti-return bolt engages with a positioning hole providedon the securing plate such that the rotation seat is seemed to bepositioned. In view of the above components, under normal situation theshoe spikes are hidden at the recess of the outsole, and the outsole issuitable for walking on a level ground (such as on a tar road, brickroad surface or a cement road). If the anti-return bolt is triggered andone end of the bolt is returned from the engaging position, the rotationseat rotates to an appropriate angle and is then positioned. Thus, theshoe spikes are protruded to provide a higher level ground-grippingforce and allows safety walking on sloping ground, refraining fromfalling into ravine, valley.

[0006] Yet another object of the present invention is to provide a dualfunction outsole structure for use in level and sloping groundcharacterized in that a recess is provided on the outsole and the recessis for the mounting of a base plate with a rotation seat, and the baseplate is hidden within the outsole, and the rotation seat is pivotallymounted onto a securing plate on the base plate, the rotation seat isprovided with a plurality of shoe spikes, and the rotation seat and thesecuring plate are provided with engaging positioning device; the shoespikes are hidden within the recess of the outsole for normal walking ona level ground, and if the rotation seat is returned from an engagingposition, the rotation seat rotates to an angle for positioning.

[0007] Still another object of the present invention is to provide adual function outsole structure for level and sloping ground, whereinthe engaging positioning device is a securing plate provided with twopositioning holes and the two ends of the rotation seat are protrudedwith a rotation shaft extended into the rotation shaft hole of thesecuring plate to form into a rotational pivot, the rotational seat isprovided with an anti-return bolt and an elastic element, such that oneend of the anti-return bolt is protruded outside the rotational seat,forming into an elastic condition, one end protruded from theanti-return bolt is engaged at a positioning hole, and the anti-returnbolt is provided with a trigger rod protruded outside the rotation seatand is slidable within a sliding slot on the surface of the rotationseat.

[0008] The foregoing object and summary provide only a briefintroduction to the present invention. To filly appreciate these andother objects of the present invention as well as the invention itself,all of which will become apparent to those skilled in the art, thefollowing detailed description of the invention and the claims should beread in conjunction with the accompanying drawings. Throughout thespecification and drawings identical reference numerals refer toidentical or similar parts.

[0009] Many other advantages and features of the present invention willbecome manifest to those versed in the art upon making reference to thedetailed description and the accompanying sheets of drawings in which apreferred structural embodiment incorporating the principles of thepresent invention is shown by way of illustrative example.

BRIEF DESCRIPTION OF THE DRAWINGS

[0010]FIG. 1 is a perspective view of the present invention.

[0011]FIG. 2 is a perspective view of a preferred embodiment of theoutsole showing the extension of shoe spike in accordance with thepresent invention.

[0012]FIG. 3 is a perspective exploded view of the present invention.

[0013]FIG. 4 is a schematic view showing the anti-return bolt mounted ona rotation seat for triggering in accordance with the present invention.The figure indicates that one end of the bolt body of the anti-returnbolt can be returned from the engaging position after the anti-returnbolt is triggered.

[0014]FIG. 5 is a schematic view showing the shoe spike on the rotationseat protruded out the outsole in accordance with the present invention.

[0015]FIG. 6 is a perspective view of another preferred embodiment inaccordance with the present invention.

[0016]FIG. 7 is a schematic view showing the engaging block of FIG. 6 ofthe present invention.

[0017]FIG. 8 is a schematic view showing the shoe spike on the rotationseat protruded out of the outsole of another preferred embodiment of thepresent invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0018] The following descriptions are of exemplary embodiments only, andare not intended to limit the scope, applicability or configuration ofthe invention in any way. Rather, the following description provides aconvenient illustration for implementing exemplary embodiments of theinvention. Various changes to the described embodiments may be made inthe function and arrangement of the elements described without departingfrom the scope of the invention as set forth in the appended claims.

[0019] Referring to FIGS. 1, 2, 3 and 4, there is shown a dual functionoutsole structure for use on level and sloping ground comprising anoutsole 10, a base plate 20, and a rotation seat 30. The outsole 10 islocated at the bottom portion of a shoe body (a) and is provided with arecess 11 at the outsole 10, which is in compliance with outsoledesigning. In the present invention, a sole portion of the front sectionof the outsole 10 and the heel portion of the rear section are providedwith a recess 11 for the mounting of a rotation seat and shoe spikes sothat the rotation seat and the shoe spikes can be contained within therecess 11.

[0020] The base plate 20 is substantially a plate-like structure made byejection molding of plastic. The base plate 20 is positioned at therecess 11 of the outsole 10, and is hidden. The base plate 20 isprovided with through holes 21 to enhance adhesion force between thebase plate 20 and the outsole 10. Further the base plate 20 is providedwith two corresponding securing plates 22. A rotation shaft hole 221 isfound on the securing plate 22 for the mounting of the rotation seat 30.There are positioning holes 222, 223 found on the securing plate 22 suchthat when the rotation seat 30 rotates to a specific angle, the seat 30can be engaged and secured.

[0021] The two ends of the rotation seat 30 are provided with rotationshafts 31 which are extended into the rotation shaft hole 221 on thesecuring plate 22 to form into a rotating pivot. The bottom section ofthe rotation seat 30 is provided with a guided corner 32 such that therotation seat 30 can smoothly rotate at an inclination facing the recess11. The rotation seat 30 is mounted with an anti-return bolt 33 and anelastic element 34 such that one end of the anti-return bolt 33 isprotruded out of the rotation seat 30 and is elastic. The end of theanti-return bolt 33 is protruded and engages at the positioning holes222, 223. In order to allow the anti-return bolt 33 to be easilytriggered with finger and is prevented from sprung out, the anti-returnbolt 33 is mounted with a trigger rod 331, and the trigger rod 331 isextendable out of the rotation seat 30 and is slidable within thesliding slot 35 on the surface of the rotation seat 30. The rotationseat 30 is provided with a plurality of shoe spikes 36.

[0022] Referring to FIG. 4 and FIG. 5, when the user walks on a tarroad, a brick road or cement road surface, the rotation seat 30 rotatesat an inclination facing the recess 11. At this instance, one endprotruded from the anti-return bolt 33 is engaged with a positioninghole 222 provided on the securing plate 22, and the rotation seat 30 ispositioned. Thus, the shoe spike 36 can be mounted at the recess 11 ofthe outsole 10 without protruding out. Thus, a hidden effect of the shoespike 36 is obtained.

[0023] Referring to FIGS. 4 and 5 when the user walks on sloping groundor along a risky valley, the trigger rod 331 on the rotation seat 30 istriggered with fingers such that one end of the anti-return bolt 33 isreturned from the engaging position of the positioning hole 222. Thenthe rotation seat 30 is free to rotate. When the rotation seat 30 hasrotated at an appropriate angle, as shown in FIG. 5c, one end of theanti-return bolt 33 is engaged with another positioning hole 223 suchthat the rotation seat 30 cannot be rotated but at secured position. Atthis instance, the shoe spikes 36 on the rotation seat 30 are protrudedout of the outsole 10 so that the outsole 10 is provided with a higherlevel ground-gripping force and allows the user to walk safely on arisky ground.

[0024] Referring to FIGS. 6 and 7, there is shown another structure of arotating-engaging position device (i.e., anti-return bolt andpositioning hole) of the rotation seat 30. The near end of the rotationseat 30 is provided with a notch 37, and an engaging block 38 withcorresponding protrusion 381 is pivotally mounted at the notch 37forming into a flip structure. The tail end of the engaging block 38 isprovided with a protrusion section 382 which can contact the inner wallof the notch 37 so that when the engaging block 38 is lifted up orpositioned after closing to avoid inappropriate vibration. The materialuse for the rotation seat 30 is a soft material, thus, if slightstrength is applied, the engaging block 38 can be easily lifted up orcovered. The top and side of the securing plate 22 are provided with anengaging slot 224 to allow the end portion at the front end of theengaging block 38 to be inserted so that the effect of engagement of theengaging block 38 is obtained.

[0025] Referring to FIG. 8, when the user walks on a tar road, a brickroad or cement road surface, the rotation seat 30 rotates at aninclination facing the recess 11. At this instance the end portion ofthe front end of the engaging block 38 is engaged at the engaging slot224 at the side of the securing plate 22 and the rotation seat 30 is ata positioned condition. Thus, the shoe spike 36 can be placed on therecess 11 of the outsole 10 without extended out, providing a hiddeneffect.

[0026] Referring to FIG. 7, when the user walks on a risky ground, theengaging block 38 on the rotation seat 30 is triggered such that the endportion of the front end of the engaging block 38 is returned from theengaging position of the engaging slot 224, then the rotation seat 30 isat free state, allowing to rotate. When the rotation seat 30 rotates toan appropriate angle, as shown in FIG. 8, the end portion of the frontend of the engaging block 38 will engage with the engaging slot 224 onthe securing plate 22, and the rotation seat 30 is positioned so thatthe rotation seat 30 cannot be rotated but becomes secured. At thisinstance, the shoe spike 36 of the rotation seat 30 is protruded out theoutsole 10 and the outsole 10 possesses a higher level ground-grippingforce and allows the users to walk safely on sloping ground.

[0027] It will be understood that each of the elements described above,or two or more together may also find a useful application in othertypes of methods differing from the type described above.

[0028] While certain novel features of this invention have been shownand described and are pointed out in the annexed claim, it is notintended to be limited to the details above, since it will be understoodthat various omissions, modifications, substitutions and changes in theforms and details of the device illustrated and in its operation can bemade by those skilled in the art without departing in any way from thespirit of the present invention.

I claim:
 1. A dual function outsole structure for use on level and sloping ground characterized in that a recess is provided on the outsole and the recess is for the mounting of a base plate with a rotation seat, and the base plate is hidden within the outsole, and the rotation seat is pivotally mounted onto a securing plate on the base plate, the rotation seat is provided with a plurality of shoe spikes, and the rotation seat and the securing plate are provided with engaging positioning device; the shoe spikes are hidden within the recess of the outsole for normal walking on a level ground, and if the rotation seat is returned from the engaging position, the rotation seat rotates to an angle for positioning.
 2. The outsole structure of claim 1, wherein the engaging positioning device is a securing plate provided with two positioning holes and the two ends of the rotation seat are protruded with a rotation shaft extended into the rotation shaft hole of the securing plate to form into a rotational pivot, the rotational seat is provided with an anti-return bolt and an elastic element such that one end of the anti-return bolt is protruded outside the rotational seat, forming into elastic condition, one end protruded from the anti-return bolt is engaged at a positioning hole, and the anti-return bolt is provided with a trigger rod protruded outside the rotation seat and is slidable within a sliding slot on the surface of the rotation seat.
 3. The outsole structure of claim 1, wherein the bottom section of the rotation seat is provided with a guiding corner such that the rotation seat smoothly rotates at an inclination facing the recess.
 4. The outsole structure of claim 1, wherein the recess is provided to the sole position at the front section of the outsole and the heel section of the rear section of the outsole.
 5. The outsole structure of claim 1, wherein the engaging positioning device includes a rotation seat having a near end portion provided with a notch, and an engaging block is provided with corresponding protrusion and is pivotally mounted within the notch and can be flipped, and the tail end of the engaging block is provided with an extension portion in contact with the inner wall of the notch, and the material of the rotation seat is a soft material, and the two ends of the rotation seat are protruded to form a rotation shaft protruded to the rotation shaft hole of the securing plate to form a rotatable pivot connection, and the top and the side of the securing plate are provided with an engaging slot for the end portion of the front end of the engaging block to be engaged so as to provide the effect of engagement of the engaging block. 